No CFE 2020 wind manual exists. However, some engineers reference:
New values for mean annual minimum temperatures significantly impact air density calculations, resulting in more accurate (and often higher) design wind speeds.
The manual’s tables for exposure categories (R1, R2, R3) require engineering judgment. Suburban terrain (R2) vs. Urban (R3) is not clearly defined at the transition zone. Two engineers could get a 20% difference in velocity pressure at the same site.
High-importance structures (e.g., hospitals, main stadiums).
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